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First vertical-axis wind turbine with Telene blades

News International-French

27 Feb 2012

JEC Europe 2012 - Syneola’s Estreya L2, the first small vertical-axis wind turbine (VAWT) capable of producing 2 kW at 11 m/s is on display at Telene SAS’ booth.

The blades are moulded with Telene high-performance dicyclopentadiene (DCPD) formulations via the RIM (Reaction Injection Moulding) process. The Courbis Group has been chosen as a development and moulding partner. Syneola’s aim was to ensure the industrial process would match their efforts in safety, aerodynamics and performance for an International Electrotechnical Commission 61400-2-certified VAWT.


The final development began after successful testing of the prototype in the wind tunnel. pDCPD enables free-form designs, so ambitious aerodynamics and structural load calculations were performed. The development team used 2-3D computational fluid dynamics (CFD) to design the blades and tailor the structure to meet the IEC specifications. Each loop was verified by simulation, structural calculations and finite element analysis.


After choosing a NACA (National Advisory Committee for Aeronautics) profile, the turbine was tested for the first time, revealing its impressive behaviour in extreme wind conditions as well as the resulting forces (e.g. wind speeds of 252 km/h). In order to save weight, the blades are moulded in two halves using a single tool and then glued together.


Another key reason for choosing pDCPD was the “green coherence” of Syneola’s manufacturing strategy as Telene shows outstanding grey energy and CO2 balance. The Estreya L2 will be available as of June 2012 with orders accepted as of May following IEC 61400-2 C-Design assessment.


More information:

Booth D61